<!DOCTYPE html>
<html lang="zh-cn">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <link rel="icon" href="<%= BASE_URL %>favicon.ico">
    <link href="https://cdn.bootcss.com/font-awesome/5.10.2/css/all.css" rel="stylesheet">
    <link href="//at.alicdn.com/t/font_1458195_mu59bo2aumh.css" rel="stylesheet">
    <title>todo</title>
    <style>
      *{
        margin:0;
        padding:0;
      }
    </style>
  </head>
  <body>
    <noscript>
      <strong>We're sorry but todo doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
    </noscript>
    <div id="app"></div>
    <!-- built files will be auto injected -->
  </body>
  <script>
    //鼠标点击出现爱心特效
    (
            function(window,document,undefined){
              var hearts = [];
              window.requestAnimationFrame = (function(){
                return window.requestAnimationFrame ||
                        window.webkitRequestAnimationFrame ||
                        window.mozRequestAnimationFrame ||
                        window.oRequestAnimationFrame ||
                        window.msRequestAnimationFrame ||
                        function (callback){
                          setTimeout(callback,1000/60);
                        }
              })();
              init();
              function init(){
                css(".heart{width: 10px;height: 10px;position: fixed;background: #f00;transform: rotate(45deg);-webkit-transform: rotate(45deg);-moz-transform: rotate(45deg);}.heart:after,.heart:before{content: '';width: inherit;height: inherit;background: inherit;border-radius: 50%;-webkit-border-radius: 50%;-moz-border-radius: 50%;position: absolute;}.heart:after{top: -5px;}.heart:before{left: -5px;}");
                attachEvent();
                gameloop();
              }
              function gameloop(){
                for(var i=0;i<hearts.length;i++){
                  if(hearts[i].alpha <=0){
                    document.body.removeChild(hearts[i].el);
                    hearts.splice(i,1);
                    continue;
                  }
                  hearts[i].y--;
                  hearts[i].scale += 0.004;
                  hearts[i].alpha -= 0.013;
                  hearts[i].el.style.cssText = "left:"+hearts[i].x+"px;top:"+hearts[i].y+"px;opacity:"+hearts[i].alpha+";transform:scale("+hearts[i].scale+","+hearts[i].scale+") rotate(45deg);background:"+hearts[i].color;
                }
                requestAnimationFrame(gameloop);
              }
              function attachEvent(){
                var old = typeof window.οnclick==="function" && window.onclick;
                window.onclick = function(event){
                  old && old();
                  createHeart(event);
                }
              }
              function createHeart(event){
                var d = document.createElement("div");
                d.className = "heart";
                hearts.push({
                  el : d,
                  x : event.clientX - 5,
                  y : event.clientY - 5,
                  scale : 1,
                  alpha : 1,
                  color : randomColor()
                });
                document.body.appendChild(d);
              }
              function css(css){
                var style = document.createElement("style");
                style.type="text/css";
                try{
                  style.appendChild(document.createTextNode(css));
                }catch(ex){
                  style.styleSheet.cssText = css;
                }
                document.getElementsByTagName('head')[0].appendChild(style);
              }
              function randomColor(){
                return "rgb("+(~~(Math.random()*255))+","+(~~(Math.random()*255))+","+(~~(Math.random()*255))+")";
              }
            })(window,document);

  </script>
</html>
